Stave-making machinery



5 Sheets-Sheet 1.

F. H. BROWN. STMVE MAKING MACHINERY.

(No Model.)

5 Sheets-Sheet 2.

(No ModeL) F. H. BROWN. sTAvf: MAKING MACHINERY.

"g Patented-May 12, 1891- rNo. 452,094.

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me News ravens co., moro-unc., wnsumnmu, n. c,

(No Model.)

Q .To e e h s e Dv h s 5. N W 0 YEn... B. E F.

STAVE MAKING MACHINERY.

N0. 452,094. Patented May l2, 1891.

(No Model.) 5 Sheets-Sheet 4.

F. H. BROWN. ST'AVE MAKING MACHINERY.

No. 452,094. Patented May 12,1891.

fue noms rc1-:ns en., muro-mno., wAsnmnwN, n. c.

(No Model.) 5 sheets-sheen 5, F. H. BROWN. STAVE MAKING MACHINERY.

Patented May 12,1891.

. PWS m IIIIIIIIIIIIIIH UNrrnn STATES PATENT Ormea.

FREDERICK HAVKINS BROVN, OF CHICAGO, ILLINOIS.

STAVE-IVIAKING NIACHlN ERY.

SPECIFICATION fori-ning part of Letters Patent No. 452,094, dated May12, 1891.

Application ned september V17, 1890. srni No. 365,290.- (No man.)

To all whom it may concern:

Be it known that I, FREDERICK HAWKINS BROWN, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inStave-Making Machines, of which the following is a full, clear, andcomprehensive description, reference being had to the accompanyingdrawings, and to the reference-numbers marked thereon, which form partof this speciiicat-ion. The invention has for its principal object theproduction of barrel-staves in inished.I

Y in the construction and operative arrangement of thecham'feringfcrozing, howeling, and cutting-off mechanism, whereby oneend each of two staves may be chamfered, crozed, howeled, and separated'at one operation of the said mechanism; the construction and operativearrangement of the devices which automatically start in motion andarrest the action of the chamfering, crozing, howelipg, and cutting-offmechanism and the lumberfeeding devices; l the operative arrangement andconstruction of the jointing mechanism; the devices which automaticallystart in motion and arrest the action of the jointing mechanism, and thedevices for adjusting the chamfering, crozing, howeling, cutting-off,and jointing mechanism, whereby the same may be adapted to theproduction of staves of large or small dimensions.,

Other and specilic features are embraced in the invention, all of whichare hereinafter fully set forth, and pointed out in the appended claims.

In the accompanying drawings, Figurel is a top plan view of a machineembodying the several features of my invention. Fig. 2 is a sideelevation thereof. Fig. 3 is a detail taken transverse the machine uponthe line of said Fig. 2, looking in the directionindicated by thehorizontally drawn arrow shown adjacent thereto,intended to illustratethe construction andaoperative arrangement rofthe chamfering, crozing,howeling, and cutting-off mechanism and the devices which effectoperation of the same and the starting and stopping of thelumber-feeding devices. Fig..4 is a broken sectional detail particularlyshowin-g the operative arrangement of the devices through whichadjustment ofthe chainfering, crozing, lioweling, and cuttingoit devicesis effected. Figp is ,a horizontal sectional detail further illustrativeof said adjusting devices, taken on the line Y Y of Fig. 4. Fig. 6 is abroken detail, mainly in' the reciprocable vices are put in actionfollowing the retraction of the cross-head to its normal position. Fig-8is an end elevation of the compound chamfering,ciozing,howeling, andseparating cutterhead. Fig. 9 is a side elevation of said cutterhead,more fully showing the construction and arrangement of the cutterscarried thereby. Fig. lO isa broken detail illustrative of the actionupon the lumber of the chamfering, crozing, howeling, and separatingcutters shown, whereby the ends of two staves are inished at oneoperation. Fig. ll is a detail, mainly in elevation, showing thestave-jointing mechanism and the devices which automatically effecttheir operation, the view be-F ing from the direction indicated by thearrow shown near the end of the machine in Fig. l. Fig. 12 is a detailinside elevation looking` in the direction indicated bythehorizontallydrawn arrow shown in Fig. l1, showing one of thejointing-heads with its spindle and slide-bearings, the devices whichmove the same to and fro transverse the machine, the tripping-leverforming part of the devices which put the jointing mechanism in action,and the position which the jointing-heads occupy with relation to theplane upon which the lumber moves. Fig. 13 is a broken end detail,looking in the direction indicated by IOC the upwardly-inelined arrowshown in Fig. 12 intending to particularly illustrate the operativearrangement of the devices through which the throw of the Cain whichmoves the slide-bcarings of the jointing-head spindles inwardly iseffected, also showing the resistance-spring which returns the saidslide-bearings to their normal position coincident with the back-strokeof the cam. Fig. 14 is a top plan detail particularly intended to showone of the slide-bearings, which carries oneof the jointing-headspindles and the cam which moves the same in one direction transversethe machine. Fig. 15 is a detail illustrative of the eccel'ltric-shaft,upon which the cam which moves the jointing-head spindle journals. Fig.16 is an enlarged broken sectional detail showing` the shaft whichcarries the pinion through which motion is given to the cam-operatin gcrank-gear, one of said pin ions, and thebearing within which saidpinion jour nals. Fig. 17 illustrates, in frontand rear elevation,respectively, the two plates forming the universal coupling elnployed inconjunction with the pinion-shaft shown in next above-described view;Fig. l8,detailsin crsssection, showing two staves respectively differingin widtlr and therefore differing in the angle to which their respectivejointing-surfaces are cut, the said view being mainly in tended toillustrate the action of the jointingheads to effect cutting of thelumber at a proper jointing angle when operated from diiferent positionsof adjustment. Fig. 19 is a top plan detail of the jointing mechanism.Figs. 2O and 21 are rear elevation and top plan view, respectively, ofone of the sliding plates which carry the journalfbearings for thecutter-head spindles. Fig. 22 is a detail in elevation of one of thecompound screws, with its nuts, forming part of the jointing mechanismwhich elt'ects movement. of the slides upon which thejointing-head-spindle slide-bearings work to their various positions ofadjustment.

Referring by number to the details of construction shown in the saidseveral views, 1 is the main frame of the machine, which sustains itsvarious working parts.

2 is a concave table, which extends longitudinally of the main frame,having such special form and being manifestly provided with suchopenings as are necessary for the accommodation and operation of certainof the working devices.

3 3 3b 3C indicate suitably-sustained feedrolls located above the table2. Corresponding feed-rolls (not shown) located below said table carrybevel-gears i 1 1 1C, respectively,which engage with similar gears 5 55b 53 carried by a longitudinal shaft (i, sustained in bear ingsforming-part of or iixed to the side of said frame. The spindles of thelower feedrolls carry spunwheels (not shown in the drawings) whichengage with corresponding gears 7 7 t 7b 7 C, fixed to the spindles ofsaid feed-rolls 3 3 3h 3, respectively.

S and .l indicate concave and convex planing-heads carried by spindleslocated above and belowthe table 2, respectively. The said spindlescarry pulleys 10 10, respectively, which receive motion from abelt (notshown) driven by a pulley 1l, carried by the main driving-shaft 12 ofthe machine, the said belt extending from said driving-pulley 11 oversaid pulley 10, thence hack to pulley 10, thence to atightener-pulley10", located near the leading end of the machine, and thence back tosaid driving-pulley 11.

13 13 13b 13C 13LI indicate pressure-rollsoperatively located above thetable 2. The lon gitudinal shaft 6 tixedly carries a clutch 6 and anadjacently-located longitudinally-reci procable loose sleeve (5^, towhich is attached (suitably distanced apart) bevel-gears 6l G, andoutside thereof clutch-plates t5 6U, respectively. The shaft 6 alsocarries adjacent to the clutch-plate G an idle rotatable camsleeve G, towhich is fixed a clutch Gf. The said sleeve GB is rotatively sustainedby a bracket 14, projecting laterally of the frame 1, being held thereinas against longitudinal movement by the hub of the cam e"by and a collarGb, fastened to the other end thereof. The sleeve 6^ is operativelyconnected by means of a pivoted yoke-lever 6j with a tripping-bar 15,sustained in guides 15a 15b, carried laterally by the frame l, a rod 1G,attached to one end of said bar, connecting the same with a lever 17,pivoted to said frame and provided at its free end with a weight 17 foreffecting quick and full movement of the tripping-bar. A shaft 1S,located transverse the machine, iixedly carries at its outer endintermediate the said bevel-gears Gb 6C, carried by the sleeve 6, abevel-gear 19, the said shaft receiving continuous motion through atrain of spur gears 19"L 19b 19C 19d 190192 driven through a cone-shaft2O by a belt 21 (see Fig. 2) from a pulley 100 on the main driving-shaft12.

22 indicates a swinging frame held to an upright frame or bracket 23,fixed to the main frame of the machine by means of a stud 23, sustainedin bearing-blocks 24 25, carried by said frame and capable of verticaladjustment in slide-bearings provided therein. The block 25 is providedwith a flange 25, which enables the securing of the stud 23 immovably tothe frame when a nut 25", arranged to work on the threaded end of saidstud, is set hard down on a washer or flange-plate 25, carried thereby,which bears against the face of said frame The block 2e!c is likewiseprovided on its inner end with a flange 21 for bearing against the rearface of said swinging frame 22 when a nut 21", working on the end of thestud 23, is set against a washer or flange-plate 24C, which works onsaid stud against the front face of said frame.

26 27 indicate ad justing-screws working vertically through said framesand in said bearing-blocks 241 25, respectively, the screw 27 enablingthe lowering or raising of the block 25, and therefore verticaladjustment of IOC IIO

IZO

the swinging framewith relation to the horizontal plane of the table 2,the screw 2G enabling vertical adjustment of the swinging frame withrelation to the stud 23 and manifestly determining the radius upon whichthe said frame shall oscillate. The swinging frame carries at its lowerend, longitudinally of the main frame, a spindle 2S, provided ou one endwith a cutter-head 29, which carries howeling, chamfering, crozing, andseparating cutters 29, 29, 29, and 29C, and on the other end with abevelgear 30, preferably formed of rawhide, which meshes with acorresponding gear 31, carried by and longitudinally movable on a shaft32, which works in bearings 33, rigidly connected by means of ayoke-extension 22 with the swingingifframe 22, and in a bearing 34,laterally pivoted to a bracket 35, attached to or forming part of themain frame. The said gear works upon a feather (not shown) carried byits said shaft 32, and is therefore capable of moving longitudinallythereof, so as to keep in engagement with the gear 30 as the frame 22oscillates upon the stud 23, the bearings 33 obviously sliding on thesaid shaft and the bearing 34 vibrating responsive to the vibratory orswinging motion of the frame 22. vThe outer end of said shaft32 carriesa pulley 36, which vis given continuous motion through a belt 36,working from a pulley 37, carried by the main driving-shaft l2.

The swinging frame 22 is connected by means of a connecting-rod 3S (seeparticularl y Fig. 3) with a cross-head 39, which plays on horizontalguides 39, sustained by a bracket or brackets 39b and the frame of themachine. The cam 6g, carried by the sleeve 6B, plays against the saidcross-head to carry the same inwardly, which effects cross motion of theswinging framein one direction,while `a weighted cord 40, attached byone fend to said cross-head and working over the guidesheave 40,retracts the cross-head to its normal position, effecting returnmotion'of the said frame.

41 (see Fig. 3) indicates a vertically -inclined tripping le'ver fixedto a horizontal shaft 42 sustained beneath the table 2, adjacent tothesituation of the cutter-h cad 29, carrying on its outer end an arm 42,adapted when swung from its normal position to engage with a projection15d in the form of a spring-dog carried by the tripping-bar .15. Theupper end of said lever 41 is arranged to so project above the table 2as to be within the path of travel of the moving lumber, and totherefore be engaged by the leading end thereof as it is fed through themachine, engagement of the arm 42 with the dog 15d effectinglongitudinal movement of the trippingbar in one direction, which movesthe yokelever 6j so as to throw the bevel-gear 6b in engagement with therotating gear 19 and the clutch-plates 6c to engagement with the clutch6f, which arrests the motion of the lumberfeeding mechanism and puts thecam 6g in rotation. The lower` end of said lever 41 is provided with acounter-weight 41 for retracting the lever toits normal position whenreleased. f

43 is a horizontally-proj ected lever (see Fig. 1, 6, and 7,) attachedby one end to an axially-movable vertical shaft 43, which journals in abearing 43h, fixed to the side of the frame of the machine, the lowerend of said shaft being operatively connected by means of an arm 43Cwith the tripping-bar 15. The free end of said lever 43 is provided witha pivoted dog 44, normally held outwardly and within the path of travelof the cross-head 39, by a resistance-spring .442L adapted to be engagedby a pin 39, projected laterally from the cross-head 39 as thecross-head is retracted to its normal position through the agency of theWeighted cord 40, the said device yielding to the engagement therewithof the cross-head as itmoves inwardly and allowing the same to pass insuch direction for the full length of its stroke. The outward movementof said lever by said cross-head effects longitudinal movement of thetrippingbar in a direction which moves the yoke-lever 6J' to carry thebevel-gear (je, carried by the sleeve 6^, to engagement with thebevelgear 19, and the clutch-plate 6 to engagement with the clutch 6,which puts the lumberfeeding devices in action.

45 indicates a weighted lever, the construction, arrangement, andoperation of which are similar to that of the tripping-lever 41, abovedescribed, the arm 4 5 carried by the shaft 46, to which said lever 45is attached, being adapted to engage with a spring-dog 15e, carried bythe tripping-bar 15, and to effect longitudinal movement of the said barsimilar to that elfected by the arm 42.

The office of the tripping-lever 45, which is engaged by the leading endof successive staves which pass beyond the chamfering, crozing,howeling, and cutting-off mechanism,is to successively arrest the motionof the lumber-feeding devices and to put in action the devices whicheffect forward cross motion of the cutter-head frame 22, thetrippinglever 41 being held inactive-z'. e., out of operativeposition-after the performance of a single function by the moving lumberso long as the lumber is continuously fed to the machine in such manneras will prevent said lever from dropping back to its normal position.

The jointing mechanism, located at or about the rear end of the machine,consists, in the main, of rotating cutter-heads 50, carried by spindles51 52, the axes of which are set at an angle, desirably acute, to theplane upon which the lumber is caused to travel, and which are capableof swinging or radial and lateral adjustment and of reciprocating motiontoward and from each other. The arrangement of the cutter-head spindlesupon an angle to the plane upon which the lumber moves gives to therotated cutters 50, carried IOO IOS

IIO

IIS

mechanism as adapts it to the jointing off,

staves of varying dimensions at proper and perfect angles. Thejoiuting-head spindles 51 52 'onrnalin bearings 51n 52" being )artofsliding plates 51b 52, respectively adapted to slide to and froathwart the machine on V- shaped shears 5i 55, forming part of or fixedto frames 54e 55, supported on horizontal coinpound screws 56 57, whichjournal in bearings carried or formed by the main frame 1, and whichcarry pairs of nuts 58 and 59, respectively located within pockets 5th,provided in said frames beneath their slide-bearing portions. The saidnuts are provided with cylindrical stems 58a, respectively, whichjournal in corresponding,r openings 54C, formed in the slide-bearingportions of said "frames 51 55, (only one of said openings being shown,by way of example,)and are held in axiallymovable connection therewithby means of screws 58d, seated in said stems, with their heads workingin suitable recesses provided therefor in the upper face of said frames54 55, the openings 51 being oblong in form, for the purpose hereinaftermade apparent. Said frames carry at their lower ends crank-gears GO G1,which are driven by pinions (52 G3, rotated by a shaft G1, which passesthrough their hubs and which carries at one end a coupling G5, (seeFigs. 11, 13, and 17,) to which is connected a shaft 66, the saidpinions journaling in bearings G2, fixed to or formed by the frames 5155. The said pinions are trumpet-muzzled in their bore, as shown in Fig.16, so as to admit of change of position of the frames by which they arecarried through the action of the screws 56 57 without interfering withtheir operative connection with the shaft (il, upon and bywhich they arerotated.

The shaft GG journals in a bearing 68, formed by or fixed to the mainframe and carries at its outer end a bevel-gear (57, which meshes with acorresponding gear 72, carried by a shaft 71, which, working in fixedbearings 69 70, f1xe l to the main frame, carries at its upper end aclutch 73, longitudinally movable upon a fcather73f, forming part ofsaid shaft. Adjacent to said clutch 73 is located a clutch orclutch-plate 75, fixed to aspindle 75h, which journals in a bearing 75,fixed to the main frame and carrying at its upper end a gear 75d, whichis engaged and actuated by a gear 75", carried by the spindle of thefeed-roll located beneath the feed-roll 3C. A trippinglever 71, arrangedto project above the table 2 within the plane of travel of the stave tobe jointed and to be engaged and moved downwardly thereby, is hinged toa weighted arm 71C, (see Fig. 12,) which is fixed to a shaft 71, whichcarries outside of the frame 1 a yoke-lever 71h, (see Fig.`1 which,embracing the clutch 73 by means of' a suitable groove provided therein,is adapted to move said clutch up and down longitudinally of its spindie71 as the trippinglever 74c is moved upwardly or downwardly.

The crank-gears GO Gl are connected by means of pitmen 8O with cams 8182, which respectively workon eccentric-shafts 83,which journal by meansof lateral projections 8.3l in bearings 84, carried by the slide-bearingframes 5l 55. To one of the journaling ends 83L of each of said shaftsis rigidly attached an arm 85, the free end of which is connected by alink or adjusting-screw 8G with the side of the frame 1 of the machine.The stem of the screw 56 (see Figs. 1 and 19) carries at one endabevel-gear 90 and at its other end a spur-gear ill, which meshes with asimilar gear 92, working upon a stud fixed to the side of the frame 1,and meshing with a corresponding lgear 93, fixed to the stem of thescrew 57. The screws 5G 57 are composed of right and left thread parts56 56h 57 57h, respectivelyl which work correspondingly in the nuts 585f), held to the slidebearing frames 54 55. The gear 03, carried by thestein of the screw 57, being smaller than the gears 91 92, when motionis given to the said gears through the gear 5)() the screw 57 is causedto move more rapidly than the screw 56,thereforecausingthe outer orlower ends of the frames 54 55 on the screw 57 to move together or apartmore rapildy than the upper ends thereofnearwhieh the jointing-heads 50work. This differential movement of the frames is for the purpose ofincreasing or decreasing the angles at which the cutters 50u, which areoperatively arranged to work upon an angle to the axes of the spindlesof their heads 50, shall work in cutting the joint-surface of staveswhich vary in width. Thus, for example, to insure a perfect coaptationof stave-joints a stave of larger width for a barrel of given diameterrequires (see Fig. 18) the joint-surface to be eut at an acute angleupon a plane, as line b, detail A, more distant from a right angle, asline l), detail A, than the joint-surface of asmaller stave. (See detailB.) The oblong form of the opening 54C, within which the stems 58b 58 ofthe nuts 58 play, enables the free outwardand inward swinging or radia-lmovement of the outer ends of the frames 5i 55, coincident with theless-rapid traversing motion of the upper nuts 59, upon which theirupper ends pivot.

The cutter-head spindles 51 52 carry pulleys 51C 52C, respectively,which are actuated through belts (not shown) operated by pulleys m n,fixed to a shaft M, sustained by brackets M', projecting from the frame1, being in turn rotated by means of a pulley M2, fixed thereto, and abelt (not shown) operated by a pulley 12, carried bythe main shaft 12.

The arms 85, connected with the eccentricshafts 83, being adjustable bymeans of the devices 86 or through change of position of theslide-beariilg frames, regulate, through the IOO IIO

eccentrics S3, the throw of the cams 81 82 to carry the sliding plates51b 52b inwardly, springs S6a (see Fig. 13) being desirably employed forreturning said plates to their orig inal position coincident with theback-stroke of the cams.

The stem of the compound screw 56 carries at its outer end, opposite tothe'spur-gear 91, a bevel-gear 90, which meshes with a similar gear 94,carried by a shaft `95, located longitudinally of the frame 1. Thesaid'shaft carries at its outer end (see Fig. 1) a registering wheel orplate 95, provided on its inner face with a series of radial grooves95h. Adjacent to said plate or wheel 95e and fixed to the frame 1 islocated a plate 95f, provided with a single groove 95h A pin 95g,inserted in the groove of said plate 95In and a groove of the plate 95eas the same are brought immedi-` ately opposite to each other, securesthe shaft 95 fixedly in position. The adjusting of the jointingmechanism being effected through the shaft 95, which carries the plateor wheel 95e, the necessity for employing devices for locking saidoperating-shaft in position is manifest.

Upon the table 2 (see Figs. 1 and 3) works a` guide-bar 95d, providedfor properly guiding the lumber to the cutting mechanisms, being adaptedto move laterally of said table to points of adjustment correspondingwith the varyin g widths of lumber to be converted into staves. The saidguide-bar is thus operated by means of screws 95C, seated therein, whichjournal in bearings iixed to or forming part of the main frame, beingoperated through bevel-gear 95", fixed thereto, which are actriated bycorresponding gears 95, carried b'y the shaft 95. The said guide-bar isarranged, as is obvious, to be adjusted simultaneously and insubstantial correspondence with the adjustment of the jointing mechanismby means of said shaft 95. f

The operation of the machine is as follows: The main driving-shaft 12being put in rototion, the shaft 1S, carrying the bevel-gear 149, isactuated by the belt 21 from the cone 1Q() on the shaft 12 through thecone-shaft 2,0 and spur-gears 19 19b 19c 19d 19e 19f. The tripping-lever41, being in its normal position, with the yoke-lever 6j, carried by itsshaft 42, in position which brings the bevel-gear 6C, forming part ofthe sleeve 6A, to engagement with the gear 19 and the clutch-plate 6d toengagement with the clutch 62, carried by the feed-shaft 6, puts inaction the lumber feeding and planing mechanisms. The guide 95d and thejointing mechanism being preliminarily adjusted in correspondence withthe width of material to be operated upon, a length of sawed or rivedlumber is introduced to the machine upon the table 2. The feed'- roll 3and corresponding lower roll engaging the lumber, carries the sameforward to be operated upon by the concaving cutter-head 8, followingwhich it is engaged by the feedroll 31 and corresponding lower roll andcarried forward to be operated upon by the convexing cutter-head 9,being next engaged by the feed-roll 3b and corresponding feed-roll andfdforward to engagement with the tri pping-lever 41, located below thecutter-head 29.- The tripping-lever 41, being moved by the lumber,causes, by means of the yoke-le4 ver 65, carried by the shaft 42, thesleeve 6A to be moved longitudinally of the shaft 6, bringing thebevel-gear 6b into engagement with the gear 19, the clutch-plate 6d fromengagement with the clutch 6, and the clutchplate 6eY to engagement withthe clutch Gf, carried by the sleeve 6B, the lower end of the leverV6J', connected with the tripping-bar 15, moving through theconnecting-rod 16 the counterweight lever 17 to insure the full throw ofthe mechanism thus moved to proper operati/ng position, whereby thecertain feeding devices thus far operating upon the lumber are thrownout of action. The cam 6g, forming part of the sleeve 6B, is started inrotation, carrying the cross-head 39 forward, which in turn,by means ofthe connecting-rod 3S, moves the swinging frame 22, which carries therotating cutter-head upon its pivot 23, and therefore the chamfering,crozing, howeling, and separating cutters athwart the lumber. Asgthetripping-bar 15 describes the movement above set forth, thehorizontally-projected lever 43, connected to said bar by the shaft 43:Land arm 43C, is caused to swing inwardly,'the dog 44, carried by itsfree end, occupying a position within the path of travel of thecross-head 39. As the said cam yis rotatively carried forward it passes.beyond engagement with the cross-head, freeing the same, and therebypermitting it and the swinging frame 22 to be retracted by the weightedcord 40 to their primary positions. Asthe cross-head describes itsreturn movement it engages with the said dog, carried by the arm 43,carrying the same outwardly, which by its connection through the shaft43. and arm 43C with the tripping-bar 15 moves the said barlongitudinally, so as to carry the sleeve 6A into position which bringsthe/gear 6c again into engagement with the gear 19, thus restarting thelumber-feeding devices. The lumber, being again started in motion, nextengages with the tripping-lever 45; throwing the same forward, the arm45, carried by the shaft 46, engaging with the IIO IZO

spring-dog 150, carried by the tripping-bar 15,

in action on the return-stroke ofthe cross` head 30, thc lumber, whichis again started in motion, abutting against the end of the stave,carries the same forward under the pressure-roll lf3 until it is engagedbythe feed-roll 3", which, being speeded faster than the otherfeed-rolls, carries the stave suitieiently rapidly through the jointingmechanism to pass beyond the same before the next stave, duly cut off,shall have reached the position to be operated upon thereby. As thestave enters between thejointing cutter-heads 50 it engages by itsleading end with the tripping-lever H, (sec Figs. l1 and 12,) which, be-

ing thrown downwardly, causes the yoke 74",'

carried by the shaft 7st, to move the clutch 73 longitudinally of theshaft 7l, upon which it is feathered, to engagement with the clutch orplate 75, carried by the geared spindle Tb, which receives motionthrough the gear 75d by the gear 75C, fixed to the feed-roll 3C, whichis driven through a gear i, fixed thereto, by a gear 5, carried by themain feed-shaft G. The spindle Tl being thus ptit in revolution, thegear 72, carried thereby, actuates the gear ('37, Iixed to the shaftGb', which carries one half of the coupling G5, the shaft 6l, whichcarries the other half of said coupling and the pinions (l2 63, beingthereby putin motion and actuating the crank-gears 60 Gl. As the saidcrank-gears start in motion the cams Sl S2, operated by the pitmen SO,move so as to permit the sliding plates, which carry the jointing-headspindles to gradually move outwardly in conformity with the swell orcurve to be given to one half longitudinally of the jointsurface of thestave, the rotating cutters 50L obviously being constantly at work uponsuch su rfaces. rlhe crank-gears having described a half-revolutioncoincident with the passage of one half of the stave through thejointing mechanism, on the additional half-revolution of the gears andfarther travel of the stave the cams are caused to move the slidingplates inwardly and gradually in conformity with the decreasing swell orcurve to be given to the remaining half of the stave.

Having thus described my invention, I claim and desire to secure byLetters Paten tl. In a stave-making machine, the combination offeed-rollers, planers, a combined chamfering, crozing, howeling, andcutting tool, trips and connections alternately actuating and stoppingthe feed and planer mechanism and the said tool, and a single actuatinglever-bar for all the trips, substantially as described.

2. In a staveniaking machine, the combination, with a planer and itsoperating and feeding mechanism, of a rigid bracket stipported 011 themachine and having a sliding bearing vertically adjustable iixedly withre lation to the bed and containing a stud extending transversely of theframe, a frame having a bearing longitudinally adjustable iixedlythereon and at which it is pivotally supported on the said stud to beoscillated transversely of the bed, and a compoundcutting-toolcomprisingasinglcseparatorbetween duplicate crozing,howeling, and chamfering knives on a rotary shaft journaled in theoscillatoryframe, the said oscillatory frame being connectedeccentricallyof its pivotal support with its actuating mechanism,whereby adjustment of the bearing on the stationary frame raises orlowers the oscillatory frame and with it the tool with relation to thebed and adjustment of the bearing on the oscillatory frame regulates theradius of the are traversed by the oscillatory frame and cutting-tool,substantially as described.

3. In a stave-making machine, the combination of feed-rollers, planets,a compound cutting-tool comprising a single separator between duplicatecrozing, howeling, and chamfering knives, trips and connectionsalternately actuating and stopping the feed and planer mechanismsand thesaid cutting-tool, and a single-actuating lever-bar for all the trips,substantially as described.

-l. In a stave making-machine jointing apparatus, the combination, withsuitable feed mechanism, of cutter-heads at opposite sides of the lineof feed of the stave on inclined rotary spindles supported inlaterally-movable bearings connected with nuts near the opposite ends ofthe spindles, and adjustingscrews, one for each of the upper and lowerpairs of nuts, the said screws being differential to cause, by turningthem equally, the cutter-head ends of the spindle to be moved toward andfrom each other slower than the opposite ends of the spindles, thediiference in the movements occasioned by so turning the screwsbeingproportioned by the screws to maintain the saine or approximately thesame radius of each cutter whatever the relative distance apart to whichthey are adjusted for staves of different widths, substantially asdescribed.

5. In a stave-making-machine jointing apparatus, the combination, withsuitable feed mechanism, of cutter-heads at opposite sides of the lineof feed of the stave on inclined rotary spindles supported inlaterally-movable spring-controlled bearings connected with nuts nearthe opposite ends of the spindles, cam mechanism operating againstthesprings to apply the cutter-heads to the edges of the stave and form thebilge thereon, and adjusting-screws, one for each of the upper and lowerpairs of nuts, the said screws being differential to cause, by turningthem equally, the cutter-head ends of the spindles to be moved towardand from each other slower than the opposite ends of the spindles, thedifference in the movement occasioned by so turning the screws beingproportioned by the screws to maintain the same or approximately thesame radius of each cutter whatever the relative distances apart towhich the cutters are adjusted for staves of different widths,substantially as described.

t5. In a stave-nuiking-machine jointing ap- IOO paratus, thecombination, with suitable feed mechanism, of cutter-heads at oppositesides of the line of feed of the stave on inclined rotary spindlessupported in laterally-movable bearings connected with nutsnear theoppoL site ends of the spindles, adjusting-screws, one for each of theupper and lower pairs ofnuts, the said screws being differentialtocause, by turning them simultaneously, the cutter-head ends of thespindles to be moved toward and from each other slower than the oppositeends of the spindles, the difference in the movement occasioned by soturning the screws being proportioned by the screws to maintain the sameor approximately the same radius of each cutter whatever the relativedistances apart to-Which the cutters are adjusted for staves ofdifferent widths, and adjusting means connected with the said screws andoperative from the same point on the machine to effect theirsimultaneous turning, substantially as described.

7. In a stave-making machine, the combi; nation of the planer, feedmechanism, a toolA for separating, crozing, howeling, and'chamfering theends of staves, the actuating mechanism for said tool, and joint-cuttingmechanism adjacent to the line of feed of the staves, differentiallymovable at opposite ends transversely of the said line to maintain thesame or approximately the same radius of the cutter for different widthsof staves, and provided with adjusting means operative from a singlepoint on the machine to effect the said differential movementsimultaneously at the opposite ends of the joint-cutting mechanism,substantially as described.

8. In a stave-making machine, the combination of the planer, feedmechanism, a tool for separating, crozing, howeling, and chamfering theends of staves, the actuating mechanism of said tool, a guide-rail onthe bed 0f the machine laterally adjustable for different widths ofstaves, joint-cutting mechanism adjacent to the line of feed of thestaves, dif-A ferentially movable at opposite ends transversely of thebed to maintain the same or approximately the same radius of the cutterfor different widths of staves, adjusting means controlling the saidguide-rail, and joint mechanism operative from a single point on themachine to eect simultaneously and correspondingly adjustment of theguide-rail and the dierential movement at the opposite ends of thejoint-cutting mechanism, substantially as described.

9. The combination, with the feed-rolls, of thefeed-shafi 6, havinggear-connection therewith and provided with a clutching device, as o,the idle rotatable sleeve longitudinally reciprocable upon said shaftand provided with bevel-gears and clutching devices, substantially asset forth, the idle rotatable cam,- sleeve carried by the feed-shaftprovided with the clutching devices arranged to 'be engaged by thelongitudinally-reciprocable rotary sleeve, the cutter-head, vibratorycutterhead frame, the cross-head connected with said frame, means'forretracting the crosshead, the actuating bevel-gear, as 19,tripping-lever 41, tripping-bar 15, and means connected therewith andwith the longitudinallyreciprocable rotary sleeve for alternately movingsaid sleeve to and from the clutching devices respectively carried bythe feed-shaft and cam-sleeve, all arranged and co-operatingsubstantially as and for the purpose described.

10. The combination of the geared feedrolls, the feed-shaft operativelyconnected therewith, the clutching devices, as o, fixed thereto, theidle rotatable longitudinally-reciprocable sleeve provided'with gearsand clutching devices, substantially as set forth, the cam-sleeveprovided with means for engaging with said reciprocal sleeve, theactuating-gear 19, the cutter-head, swinging cutter-head frame, thecross-head connected with said frame, means for retracting saidcross-head, the tripping-bar, devices con-y nected with thetripping-bar, the rotary reciprocable sleeve for reciprocally operatingsaid sleeve, tripping devices operatively located adjacent" to theworking position of the swinging frame, having connection with andadapted to operate the tripping-bar to move the rotary reciprocablesleeve in one direction, and the lever 43, having operative connectionwith the tripping-bar, substantially in the manner and for the purposeset forth, arranged and adapted to be operated by the cross-head on itsreturn movement, substantially as described.

l1. The combination, with the fixed and swing frames 22 23, providedwith slide-bearings substantiallyas set forth, stud 23,bear ing-blocks2t 25, devices for securing said blocks immovably to their respectiveframes, the cutter-head -spindle 28, and cutter-head 29, of theadjusting-screws 26 27, working through said frame and bearing-blocks,where by is effected vertical adj ustment of the swing'- ingframe with relation to the horizontal plane of the table of the machineand the plane of movement of the lumber, and adjustment thereof withrelation to the radius upon which it and the cutter-head shalloscillate, substantially as described.

12. The combination of the jointing-headspindle supports, the dependingframes forming supports therefor, means for operating said framessubstantially in the manner described, the cams for operating thespindlesupports, the crank-gear sustained by the depending frames,devices connecting said gear with the cams, the pinions for operatingsaid crank-gear, the shafts 64 6G, coupling 65, bevel-gear 67, the shaft71, spindle 75, suitable clutching mechanism carried by said shaft andspindle, the tripping-lever 7 4, arranged to be operated as described,devices connected therewith and with the clutching devices for operatingthe clutching de vices, the gear 7 5d, carried by the spindle 7 5b,

the feed-roll 3, the bevel-gems 75C :md 4, ozu'- iied by the feed-rollspindle, the feed-sliaift7 and geal- 5, carried thereby, all arrangedand cooperating substantially as mid for the pn 1- poses herein setforth.

13. The combination of the jointing-liemlspindle sliding plates, thesliding-plate supports, the com pound sc1e\vs,and the gears foroperating the same with the shaft Q5, the gl'ooved registering Wheelzuid plate, and [o means foi' interlocking the salme, substantizlly as:md for the purpose described.

'A FREDERICK IIAWKINS BROWN. Witnesses:

G. W. LEVIN, OTTO E. PIETSCH.

